It's really a one-way street when it comes to "verbals" (committing before a binding agreement is allowed under NCAA rules) -- and it all travels in the direction of the school.
A player taking such a risky course should really understand the pitfalls.
If you are good enough to be recruited so early, it means you are a top flight prospect. (If you are being recruited early and are not a top flight recruit, you are simply an insurance option if, but only if, the school cannot find someone better. In this case, youre disposable at the coachs whim with the blame to be laid at the foot of admissions more often than not.) If you are a top flight prospect, the school will wait for you at least until the beginning of your senior year. If the school says it won't wait for you, the school is either bluffing, or not. If the school is not bluffing, go somewhere else --there will be plenty of other great fits (academic, social, etc.) for a top flight recruit.
Here is the reality: if a top flight recruit's game/skills do not continue to progress after the early verbal, the school will back off the commitment (or, tell the recruit to go elsewhere for the recruit's "welfare.") During the period the recruit verbaled until the time the school backs off, the recruit will have pulled back from the recruiting "circuit" because the recruit thought the college recruiting race was finished. Often, by the time that happens, and by the time the word gets out that the recruit is available, the recruiting season will be winding down (there will still be spots, but not as many; and the time pressure is now working against the recruit).
Here is one illustrative story: Early courtship ends badly for Duke recruit - CharlotteObserver.com
It is by no means unusual and should be a cautionary tale for all athletes considering an early commit.
The sweet spot in recruiting is the summer through the beginning of fall going into the senior year. This is when the recruit should try to "peak" -- all academic testing finished; all conditioning peaking; all camps/showcases/meets, etc., carefully chosen with an eye towards presenting your best performance in full view of the schools/conferences/levels of competition you are considering. (Before that, its fine to be seen on the recruiting circuit; its fine to perform; its fine to do preparatory work [i.e., looking at schools, talking to coaches, researching programs/conferences, etc].)
In my opinion, just hold off on that commitment while letting the recruiting process unfold. (In our case, many of the schools that made the final cut were not even on the list before that last high school summer.)